KStar KSG-10K User Manual

KStar KSG-10K User Manual

Solar inverter
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KSG-10K/12K5/15K/17K/20K
KSG-10K/12K5/15K/17K/20K
Solar Inverter
Solar Inverter
User Manual
201402 ︳ Ver 1.0

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Summary of Contents for KStar KSG-10K

  • Page 1 KSG-10K/12K5/15K/17K/20K KSG-10K/12K5/15K/17K/20K Solar Inverter Solar Inverter User Manual 201402 ︳ Ver 1.0...
  • Page 2: Table Of Contents

    Table of Contents 1. Introduction for Signs ..............4 2. Introduction ..................5 2.1 Preface ..................5 2.2 PV Grid-connected Generating System ........5 2.3 How to Use This Manual ............5 3. Safety Instructions ................. 6 4. Overall Introduction ............... 7 4.1 Circuit Structure ..............
  • Page 3 7.4.1 Input mode ..............21 7.4.2 Standard for electric network ......... 21 7.4.3 Remote CTRL ..............21 7.4.4 Working parameters ............22 7.4.4.1 Starting-up voltage ..........22 7.4.4.2 Starting-up timelag ..........22 7.4.4.3 Low voltage of electric network ......23 7.4.4.4 High voltage of electric network ......
  • Page 4 7.6.4 Generated energy of that day .......... 31 7.6.5 Generated energy of that week ........31 7.6.6 Generated energy of that month ........31 7.6.7 Generated energy of that year ......... 32 7.6.8 Gross generation ............. 32 8. Installation ..................33 8.1 Overview ................
  • Page 5: Introduction For Signs

    1. Introduction for Signs In order to make a better use of this manual, please read the following sign explanation carefully. Warning! This sign indicates that it may cause danger to safety of users and/or attentions or instructions for possible serious damage to hardware.
  • Page 6: Introduction

    2.1 Preface Dear users, thank you for using photovoltaic grid-connected inverter products manufactured by Kstar which is experienced in development of photovoltaic grid-connected generating sets. We hope this product can meet your demands and welcome you to put forward more suggestions on performance and functions of this product.
  • Page 7: Safety Instructions

    company. Please read this manual carefully prior to use of this product and store it properly in a place where it is convenient for installation, operation and available for maintenance personnel. 3. Safety Instructions ► Please read this manual carefully prior to installation. This company assumes no responsibility for quality assurance upon equipment damage due to installation failing to follow instructions in this manual.
  • Page 8: Overall Introduction

    4. Overall Introduction 4.1 Circuit Structure Figure 2 shows main circuit of KSG-10K/12K5/15K/17K/20K inverter by which the direct current is input via three-phase full- bridge circuit and transformed into sine-wave current through filter and output to power grid. To make the photovoltaic array generate in maximum power, the new type power devices are adopted for this machine and the advanced MPPT algorithm is used at the DC side.
  • Page 9: Description For External Interface

    1. DC Input 3. RS-232 4. RS-485 (Option) 6. WIFI port 2. AC OUTPUT Figure 3: Interface of KSG-10K/12K5/15K/17K/20K Inverter Instructions for Interface ■ ► 1: DC Input: DC input terminal, connected to positive and negative electrode input of photovoltaic array respectively.
  • Page 10: System Operation

    Prior to grid connection of the inverter, please confi rm if the wirings among input side of inverter, PV arrays, output side and power grid are all correct. Three kinds of modes are optional for connection between DC input side of KSG-10K/12K5/15K/17K/20K grid- connected inverter and PV arrays: Installation and Opertion Manual...
  • Page 11 ► Independent input mode: three groups of different PV arrays may be connected to input end of inverter and independent MPPT controller is available for each group of PV arrays to control grid- connected operation. Figure 4: Independent Input Mode ►...
  • Page 12: System Shutdown

    The inverter will cut away from the grid upon discovery of any abnormal condition during the grid-connected process. 5.4 Error and Alarm The error and alarm information of KSG-10K/12K5/15K/17K/20K photovoltaic grid-connected inverter refer to the following table: Table 5.1 Working conditions and fault/alarm message...
  • Page 13 Generate AC power and feed to Normal Power Generation Normal municipal Grid after self-test is completed Monitoring parameter display Instant Power Rate XXXX W/ Instant power rate & accumulated & Volume Of Power XXXXX Kwh power generated Generated Voltage And Current Of DC: XXX.X Voltage and current from PV arrays PV1/PV2/PV3 Input...
  • Page 14: Type Of System Fault And Trouble Shooting

    DSP communication faulty on DSP Operation Fault control board. DSP communication faulty on DSP Communication Lost F32 control board. Table 5.2 Alarm Information Alarm message Alarm code Solutions Alarm message for speed low of Fan_ Speed Low Of Fan_A Alarm message for speed low of Fan_ Speed Low Of Fan_B Alarm message for speed low of Fan_ Speed Low Of Fan_C...
  • Page 15 (1)Please check the setting of input mode Input Current High (2)Disconnect PV input and restart the inverter and check whether (F08) fault still exists. (3)Contact with your local distributor if the fault still exists. (1)Disconnect PV input and restart the inverter after few minutes Inverter Current and check whether fault still exists.
  • Page 16: Human-Machine Interface

    6. Human-machine Interface 6.1 LCD controlled panel There are 4 buttons and 4 LEDs installed on the panel of KSG- 10K/12K5/15K/17K/20K inverter, as shown in Figure 7. Figure 7: LCD Controlled Panel Table 6.1 Description for LED light LED light Defi nition Indicator light for waiting of paralleling in WAIT NORMAL...
  • Page 17: Networking For Monitoring

    6.2 Networking for monitoring The inverter is provided with various kinds of communication modes, when the user requires to monitor the running information of photovoltaic power generation system, we will offer the following design scheme for monitoring system. The maximum distance of RS485 communication is about 1000m, and device number should not be more than 32.
  • Page 18: Wlan (Optional)

    Pin corresponding relationship between inverter and GPRS/ Wifi unit. Inverter RJ45 Inverter RJ45 Pin NO. RS485 Pin NO. RS485 (A)T/R+ ► (A)T/R+ (B)T/R- ► (B)T/R- ► ► ► ► ► ► Pin corresponding relationship between inverter and inverter unit. 6.3 WLAN (optional) Equipped with WLAN/WIFI box, the inverter can realize Ethernet wired/wireless multiple computer communication.
  • Page 19: Lcd Operation Menu

    7. LCD Operation Menu 7.1 Initialization Interface Explanation After starting-up of inverter, During initialization… LCD will fi rstly enter this interface, and please wait! deliver parameters required by operation of the machine to DSP. 7.2 Major cycle menu After initialization, LCD will enter a major cycle menu to display running information of the inverter in a circulating mode, including 10 interfaces for network voltage, frequency of electric network, etc.
  • Page 20 Network voltage Setting Setting Network frequency Inquiry Inquiry Grid-connected Current Statistics Statistics Power PV input: 15002W Paralleling in: 7002W PV1 Input Voltage: 550.0V Current: 100.0A Power: 10000W PV2 Input Voltage: 550.0V Current: 100.0A Power: 10000W PV3 Input Voltage: 550.0V Current: 100.0A Power: 10000W...
  • Page 21: User Interface

    7.3 User interface Interface Description Select corresponding options by pressing -----User----- UP or DOWN button, enter “setting”, → 1:Setting “inquiry” and “statistics” menus by 2:Inquiry pressing ENTER button. Press ESC to 3:Statistics return major circulating menu. 7.4 Setting Interface Description After entering into the setup interface, t h e s y s t e m w i l l p r o m p t t o i n p u t -----Password-----...
  • Page 22: Input Mode

    7.4.1 Input mode Interface Description Press UP/DOWN button to move corresponding option. Then confirm ----- Input mode ----- the selected option and enter interface → 1:Independent of please starting-up again (refer to 2:Parallel connection 7.4.4.7) by pressing ENTER button. 3:Mixed connection Press ESC button to cancel choice and return back setup interface (refer to 7.4).
  • Page 23: Working Parameters

    7.4.4 Working parameters Interface Description Press UP/DOWN button to move corresponding options, press ENTER -- Working parameters-- to enter into the selected menu; return → 1:Starting-up voltage back setup interface (refer to 7.4) by 2:Starting-up timelag pressing ESC, there are 6 options in 3:Low voltage of total, including starting-up voltage, electric network...
  • Page 24: Low Voltage Of Electric Network

    7.4.4.3 Low voltage of electric network Interface Description Press UP/DOWN to increase or decrease the input figure, confirm --GRID VOLT LOW-- input and enter into interface of please Input: starting-up again (refer to 7.4.4.7) by Unit: pressing ENTER button; press ESC to cancel input and return back working interface (refer to 7.4.4), input figure is between 150 and 210.
  • Page 25: High Frequency Of Electric Network

    7.4.4.6 High frequency of electric network Interface Description Press UP/DOWN to increase or decrease the input fi gure, confi rm input --- High frequency of and enter into interface of starting- up again (refer to 7.4.4.7) by pressing electric network --- ENTER button;...
  • Page 26: 485 Baudrate

    7.4.6 485 baudrate Interface Description Press UP/DOWN button to move corresponding options. And confirm ------SELECT------ selected option and return back the → 1:2400 bps setup interface by pressing ENTER button (refer to7.4), press ESC button 2:4800 bps to cancel choice and return back setup interface (refer to 7.4);...
  • Page 27: Date/Time

    7.4.9 Date/time Interface Description Press UP/DOWN to increase or decrease the input fi gure, press ENTER -----Date/time----- button to move the cursor backwards, Date: 2000-01-01 confirm input and return back setup Time: 02:43:03 interface (refer to 7.4); and move the Week: 6 cursor frontward and return back setup interface (refer to 7.4)by pressing ESC...
  • Page 28: Password Setting

    7.4.11 Password setting Interface Description This interface will be used to alter ----- Password ----- password when entering into the setup Old one: XXXXX interface (refer to 7.4). New one: XXXXX Press UP/DOWN to increase or Confi rm: XXXXX decrease the input fi gure, press ENTER button to move the cursor backwards, confirm input and return back setup interface (refer to 7.4);...
  • Page 29: Inv Model

    7.5.1 INV MODEL Interface Description This interface displays product Model. -----Inverter----- of the inverter. KSG-10K UP/DOWN button is invalid, ENTER button is invalid; and press ESC button to return back the inquiry interface (refer to 7.5). 7.5.2 MODEL SN Interface...
  • Page 30: Record

    7.5.4 RECORD Interface Description This interface displays record and -----Rec( 35)----- its occurring time, including two 1:F01 types of fault and warning alarm, its Date: 2011-10-21 content will be described in codes, Time: 16:35:26 with total number of 500 at utmost, after exceeding this extent, the one with earliest time will be covered.
  • Page 31: Statistics

    7.6 Statistics Interface Description This interface is used to select various ----- Statistics ----- options for statistics. UP/DOWN → 1:Time statistics button is used to move corresponding 2:Times of options, press ENTER button to enter paralleling in the selected menu; and press ESC to 3:Power peak return back the user interface (refer to 7.3), there are 8 options, including...
  • Page 32: Power Peak

    7.6.3 Power peak Interface Description This interface displays history power -----Power peak----- peak and today power peak of the After inverter. UP/DOWN button is invalid, starting-up: 10645 and ENTER is also invalid; press ESC That day: 9600 button to return back statistics interface Unit: (refer to 7.6).
  • Page 33: Generated Energy Of That Year

    7.6.7 Generated energy of that year Interface Description This interface displays generated -----This year----- energy of that year. UP/DOWN button Numerical value: 30000 is invalid, and ENTER is also invalid; Unit: press ESC button to return back statistics interface (refer to 7.6). 7.6.8 Gross generation Interface Description...
  • Page 34: Installation

    Therefore, please inspect it before installation. If any damage is detected, please contact with the transportation company or Kstar directly. We will provide you with the best and quickest service after you provide the photo of damaged part.
  • Page 35: Mechanical Installation

    8.2.2 Mechanical dimension We offer the dimension of case aiming to create the convenience for your mechanical installation of KSG-10K/12K5/15K/17K/20K inverter. The mechanical dimension of KSG-10K/12K5: Champagne: 506×700×210mm in width×height×depth. Its weight is 41kg; Silver: 506×695×204mm in width×height×depth. Its weight is 37kg.
  • Page 36 Fig.12 KSG-10K/12K5 Dimension(champagne) Fig.13 KSG-15K/17K/20K Dimension(champagne) Fig.14 KSG-10K/12K5 Dimension(silver) Fig.15 KSG-15K/17K/20K Dimension(silver) Installation and Opertion Manual...
  • Page 37: Packing

    8.2.3 Packing Please check carefully before opening the package of the equipment. It may cause the inverter damage in case the packing material is found damage, please contact with forwarder for claim. If necessary, Please feel free to contact us. 8.2.4 Installation of Inverter Please read the following installation instruction before you start your work so as to achieve best effect of the inverter.
  • Page 38: Installation Location

    8.2.5 Installation Location The inverter is suitable to be installed on vertical or backwards tilt wall as shown above, the tilt angle should be less 20 ° . Don’t install inverter on forward tilt wall. Don’t install inverter on horizontal wall. Mount the inverter at height same as eyesight for easy operation and data reading.
  • Page 39 Clean the dust inside the holes, and insert expansion pipe into the holes. And then tighten 4 screws into upper four pipes, After tightening, gap between the nut and the wall must than 10mm at least. Hang the inverter onto the 4 tapping screws, and check both sides and keep the inverter in right position, then tighten four tapping screws as shown in following pictures.
  • Page 40: Ambient Requirement

    Warning! Don’t place KSG-10K/12K5/15K/17K/20K inverter with infl ammable materials. Warning! The temperature of some parts of KSG-10K/12K5/15K/ 17K/20K inverter is very high. Avoid contacting with them. 8.3 Electric connection 8.3.1 Requirement for electric installation ►...
  • Page 41: Wire For Alternating Current Connection

    Connect the “N” of alternating current output with “N” of grid; ► The earth terminal is connected with the land via guide line. ► Confi rm that the wiring is fi rm. Warning! Assure there is no live part of KSG-10K/12K5/15K/ 17K/20K inverter during electric wiring. Installation and Opertion Manual...
  • Page 42: Wire For Direct Current Connection

    8.3.3 Wire for direct current connection Warning! The open-circuit voltage of photovoltaic array should not exceed 900V, or the equipment will be damaged. Measure the open-circuit voltage of photovoltaic array with multimeter when connecting. Warning! The positive pole and negative pole of voltage for photovoltaic array cannot be reverse, which can be measured with multimeter.
  • Page 43: Wire For Communication Connection

    8.3.4 Wire for communication connection The communication method of RS485 bus is adopted for this machine when PC is used for monitoring of signal or multiple grid-connected inverters and the RJ45 terminal of terminals for inverter is the port that is used for connection of internal 485 Bus. The monitoring can be fulfi...
  • Page 44: Starting And Closing

    Kstar cannot commit the quality assurance and bear any responsibility arising from it due to failure of complying with this requirement.
  • Page 45: Technical Data

    9. Technical Data Table 9.1 Technical Data Input Data KSG-10K KSG-12K5 KSG-15K KSG-17K KSG-20K Maximum power of battery 12KW 14KW 17KW 19KW 22KW Maximum voltage of direct 900V current Rated operational voltage 580V Tracking scope of voltage 250V~850V Full load MPP voltage...
  • Page 46: Appendix

    10. Appendix 10.1 Quality assurance The quality assurance for product of Kstar can be conducted only on the condition that invoice and date when customer purchases the product should be presented and the trade on the product is clear during quality assurance period.
  • Page 47 ► Kstar will maintain or replace the product having fault with the new one free of charge when the fault is produced during quality assurance period. ► The unqualified product after replacing should be returned to Kstar. ► The reasonable period must be reserved by customer so that Kstar can repair the equipment having fault.

This manual is also suitable for:

Ksg-15kKsg-12k5Ksg-17kKsg-20k

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